Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 156
ME(w/o STI)-5
General Description
MECHANICAL
B: COMPONENT
1. TIMING BELT
(1)
Timing belt cover No. 2 RH
(12) Timing belt
Tightening torque: N·m (kgf-m, ft-lb)
(2)
Timing belt guide
(13) Belt idler No. 2
T1: 3.4 (0.3, 2.5)
(3)
Crank sprocket
(14) Belt idler
T2: 5 (0.5, 3.7)
(4)
Timing belt cover No. 2 LH
(15) Timing belt cover LH
T3: 6.4 (0.7, 4.7)
(5)
Tensioner bracket
(16) Front belt cover
T4: 9.75 (1.0, 7.2)
(6)
Automatic belt tension adjuster
ASSY
(17) Timing belt cover RH
T5: 24.5 (2.5, 18.1)
(7)
Belt idler
(18) Crank pulley
T6: 25 (2.5, 18.4)
(8)
Exhaust cam sprocket RH
(19) O-ring
T7: 39 (4.0, 28.8)
(9)
Intake cam sprocket RH
(20) Timing belt guide
(10) Intake cam sprocket LH
(21) Actuator cover
(11) Exhaust cam sprocket LH
(22) Belt idler
ME-04999
(7)
(10)
(11)
(15)
(17)
(9)
(8)
(12)
(16)
(19)
(19)
(21)
(21)
(13)
(14)
T7
T7
T8
T1
T8
T1
T8
T8
T2
T2
T2
T2
T2
(18)
T9
(6)
(5)
(22)
(2)
(3)
(4)
(1)
(20)
(20)
(20)
T3
T4
T7
T3
T3
T2
T2
T6
T2
T5
T2
ME(w/o STI)-6
General Description
MECHANICAL
2. CYLINDER HEAD AND CAMSHAFT
ME-04964
T5
T5
T5
T5
T5
T5
T4
(3)
(7)
(6)
(9)
(8)
(10)
(12)
(13)
(25)
(21)
(20)
(6)
(16)
(17)
(18)
(9)
(8)
(19)
(15)
(14)
(29)
(11)
(5)
(4)
(22)
T5
T5
(14)
(29)
(12)
(27)
(26)
(27)
(31)
(30)
T1
T4
(11)
T3
T2
T1
T3
(24)
(23)
T1
(32)
T5
(1)
(2)
T5
(28)
T2
(31)
(27)
T1
T3
(30)
T3
ME(w/o STI)-7
General Description
MECHANICAL
(1)
Rocker cover RH
(14) Cylinder head gasket
(27) Gasket
(2)
Rocker cover gasket RH
(15) Cylinder head LH
(28) Oil pipe RH
(3)
Front camshaft cap RH
(16) Intake camshaft LH
(29) Stud bolt
(4)
Intake camshaft cap RH
(17) Exhaust camshaft LH
(30) Union bolt with filter (with protru-
sion)
(5)
Intake camshaft RH
(18) Front camshaft cap LH
(31) Union bolt without filter (without
protrusion)
(6)
Oil flow control solenoid valve
(19) Intake camshaft cap LH
(32) Gasket
(7)
Exhaust camshaft cap RH
(20) Exhaust camshaft cap LH
(8)
Gasket
(21) Rocker cover gasket LH
Tightening torque: N·m (kgf-m, ft-lb)
(9)
Oil return cover
(22) Rocker cover LH
T1: 6.4 (0.7, 4.7)
(10) Exhaust camshaft RH
(23) Oil filler cap
T2: 9 (0.9, 6.6)
(11) Cylinder head bolt
(24) Oil filler duct
T3: 29 (3.0, 21.4)
(12) Oil seal
(25) O-ring
(13) Cylinder head RH
(26) Oil pipe LH
ME(w/o STI)-8
General Description
MECHANICAL
3. CYLINDER HEAD AND VALVE ASSEMBLY
(1)
Exhaust valve
(5)
Intake valve oil seal
(9)
Valve lifter
(2)
Intake valve
(6)
Valve spring
(10) Exhaust valve oil seal
(3)
Cylinder head
(7)
Valve spring retainer
(11) Intake valve guide
(4)
Valve spring seat
(8)
Valve spring retainer key
(12) Exhaust valve guide
(3)
(1)
(12)
(10)
(4)
(6)
(7)
(8)
(9)
(10)
(4)
(6)
(7)
(8)
(9)
ME-04990
(12)
(2)
(11)
(4) (5)
(6)
(7) (8)
(9)
(11)
(4) (5)
(6)
(7) (8) (9)
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